S-299 Mini 4.1 Audio Stereo Power Amplifier BT Portable Car and Home Dual-use 4*40W Remote Control Audio Amplifier

Features:
There will be no noise when playing with USB or memory card.
In addition connect to four speakers rated at 40 watts, it can also be connected to an active subwoofer, which has no power limit.
The blue screen is of fine quality and more upscale than the red screen.
With BT, USB, memeory card reading and remote control function.
DC/AC power in, suitable for both home and your car.